Packard Forum Index » Pre-War (1899-1942)

I have several new and used lock pins that hold the king pins in place. All of them seem to be the same diameter at both ends, with no taper. They do have grooves cut in them, 3 per pin. I need to replace the passenger side king pin, and I need to know which way to drive out the lock pin, if they are tapered. The NOS kingpins I have are .866 and the lock pins are .500. The grooves on the lock pins run almost the entire length, but stop just short of the end. I assume I would drive the lock pins out toward the un-grooved end, if I can figure out which end that is.
This kingpin set has split steel bushings with bronze lining.

If I remember, the lock pins have an interference fit and are fairly soft compared to king pin and spindle housing. So it doesn't really matter which end or what side you drive in first. The lock pin will mushroom as you drive it and self wedge. The grooves allow it to compress and squeeze into the notch space of the kingpin.